On November 14, six days after Donald Trump won the presidential election, more than 80 researchers from 42 schools of public health gathered for a closed-door meeting at the Boston University School of Public Health. Their agenda: how to get around the federal government's de facto ban on researching the health impact of gun violence and get it done anyway. "The idea was to pull together a meeting to say, 'We have had no change in the number of firearm deaths and firearm injuries since 2000.